Camera Section Adjustment - Samsung VP-A50 Service Manual

Alignment and Adjustment

5-2 Camera Section Adjustment

Notes : This camera system uses
1. EVR (Electronic Variable Resistor) control method by MICOM(ICC04) (instead of VR control).
2. EEPROM to store the confirmed adjustment data.
3. DSP (Digital Signal Process : ICP04 - Main board). This chip process the camera signal.
4. One test point for frequency adjustment of the DSP main clock (P. CLK).
5. Special mode for camera adjustment using remote control card.
Readjustment is needed when the DC/DC board is removed from Main board.
6. Readjustment is needed when the EEPROM (ICC05 of Main board) is replaced.
(The EEPROM stores confirmed adjustment values for each adjustment step.)
Except DC/DC board, all adjustment steps of the VCR section should be performed using the remote
control card.
7. Since OSD appears not on the TV screen but on EVF, perform the adjustment using the EVF.
Be sure to perform the adjustment under installing camera assy with the unit because remote module is
on MF board.
5-2-1 Preparation
1. Equipment :
1) DC Power supply
2) Oscilloscope
3) Frequency counter
4) Vectorscope
5) Waveform monitor
6) Colour monitor or TV
7) Various charts
- Color bar chart
- Gray-scale chart, etc...
8) Alignment tape (Lion pattern)
9) Remote control card
4. Remote Control Operation :
Using Button
STOP (CONFIRM)
STILL (DATA DOWN)
PLAY (DATA UP)
FF (MODE UP)
REW (MODE DOWN)
ZOOM (WIDE)
(TELE)
5-2
Data store after finishing adjustment by DATA UP/DOWN button.
When changing data value of adjust state.
Mode change.
Used for manual focus adjustment.
2. Composition of camera PCBoards
1) Main PCB 2) CCD PCB
4) EVF PCB (VP-A50/VP-A55)
5) CVF PCB (VP-A52/VP-A57)
3. Adjustment preparation
1) Remote control card is used as a camera adjust
tool.
2) Press the confirm button when each manual
adjustment step is completed to write the
adjustment data to the EEPROM.
3) To cancel the adjustment mode, remove the power
source.
Adjustment
Samsung Electronics